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1990 Ford Bronco
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Posted at Sat Nov 07, 2009 10:56 am |
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By
scoth,
Have Donated |
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Give Feedback | Votes: 0 |
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Electrical problem
1990 Ford Bronco V8 Four Wheel Drive Automatic 125000 miles
MY BRONCO WILL COLD START AND RUN NICE, WHEN IT HEATS UP OR WHEN THE HIGH IDLE IS REDUCED THE ENGINE SUDDENLY DIES AND WON'T START. IT WILL START AFTER IT SITS FOR A MINUTE. NEW COIL/DIST. |
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Posted at Sat Nov 07, 2009 11:56 am |
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By
rasmataz,
Certified 2CarPros Master Technician |
 (8489) Give Feedback | Votes: 230 |
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Hi scoth and TY for the donation
WHEN IT HEATS UP OR WHEN THE HIGH IDLE IS REDUCED THE ENGINE SUDDENLY DIES AND WON'T START. IT WILL START AFTER IT SITS FOR A MINUTE. Next time it dies out don't wait do below to determine if its fuel or spark problem
Get a helper disconnect a sparkplug wire or 2 and ground it to the engine -have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs,coil's resistances,distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it |
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